Does your feature request involve difficulty completing a task? Please describe.
Although I can't do it, I think this feature is repetitive as there are already many languages in koreader

Describe the solution you'd like
Add input method in zh-cn，It would be great if you could change Wikipedia to something else.

Describe alternatives you've considered
like software listary，different websites have different url.
Additional context
Hope to add input method in Simplified Chinese for Wikipedia search. If possible, I hope to change the encyclopedia used or directly use a different search engine to search. In mainland China, Wikipedia is sometimes unavailable. It would be great if it could be replaced with a search engine and searched, such as the form in the figure below.

Different websites can replace the keyword "query" in it.
My native language is not English, these are from Google Translate, thank you very much for your careful reading.